Removable tubular rim.



J.. 0,. COLE. REMOVABLE TUBULAR -RIM. APPLIGATION FILED JULY 2'7, 1908.

Patented June 6, 1911.

WITNESSES:

D 7 lowing is a specification.

UNI D sT-ArEs P T NT OFFI E;

JOHN crannncn COIJE', 0FCHICOPEEJALLS, massacimsnrrs, ass'ranon, 3r MESNE assrenmnnrsyrornn rrsx RUBBEncoMrANY, or cameras FALLS, MASSACHU- snrrsasconronarron or DELAWARE, V

i nnmovanrn me e Specification of Letters Patent.

Patented June 6, 1911;

Application filed July 27, 1906. Serial No. 445,498.

To all whom it may concern:

Be it' known that I, JOHN (1Com, a-citizen of the United Statesof America, re siding at Ohicopee Falls, in the county of '5 Hampden and State of Massachusetts, have invented new and useful Improvements in Removable Tubular Rims,

This invention relates to improvements in 10 the construction of so-called demountable rims forvehicle wheels such as are .used on self-propelledvehicles equipped with pneumatic tires; By the term demountable as used herein, ismeant. a rim adapted to.

'15 receive a tire ready for use. which rim may be quickly applied to, or removed from, a

rim fixed on the wheel, the demountable rim being secured to the fixed rim by the use of various devices for locking it thereto in operativeposition.

The invention embodied in this applica tion is in thenature of an improvement on the construction shown, described, and

claimed in my prior Letters Patent of the United States dated February 8, 1910 and numbered 948,813 for improvements in removable wheelprims, in whichpatent is embodied a certain type of locking device adapted to cotiperate with a fixed and a remov'able rim, both of said rims being shown and describedas of solid metal construction. The present invention has forits object the improvement in the construction of the f rims and the coiiperative locking devices,

, whereby a much lighter structure is obtained without any sacrifice of necessary strength and rigidity; the fixed rim and the removable rim of said patented construction being in the present invention made ML tubular, whereby the desired lightness,- strength, and rigidity are attained.

Reference to the specification and accompanying drawings will fully disclose the nature and construction of the invention.

5' In the drawings forming part of'this applicati0n,-Figure 1 is a transverse, sectional elevation showing the woodenielly of the wheel and the improved tubular fixed rim on the felly and the improved tubular 0 demountable rim on the fixed rim, together with the devices for securing the dcmount-.

able rim in position, the plane of the sec tion being on line 1'-1, Fig. 3. This view shows the removable rim adapted to receive,

of which the fol clencher type of tire,

.of this, band f (indicated by what is known as the bolted on, or Fisk type of tire. Fig. 2. is a similar sectional View of tire, all of the elements or the structure clencher type I but showing a demountable rim adaptedfto recelve what is lmown as the i cross sectional form of the demonn'table rim is somewhat changed to adapt .it to the Fig. 3 1s aside ele;

vation of, the complete wheel showing .the

demountable rim in positionthereon; Fig, 4 is a cross sectional view oi. the demount able rim shown in; Fig. 2 butshowing the same provided with a filling ring ,of wood instead of being closed by a met-airing as n nF g- -v on 'J 4 i Referring to the drawings, a designates the usual wooden fellyo f, the Wheel j b desig nates the fixed tubular ri I, permsn'entlysev cured to the felly and which consists of a vertical side portion 0, an inclined portion d and the fiat portion 6 which fits closely the periphery of the felly to which it is secured in any desired Wilyr This rim 6 is formed from a single piece of metal, the parts. there- 01E just described beingv so disposed as to leave it open around the outer periphery thereof, this open, space being seles'ed by means of n annular band f which'is se-- cured to the tubular rim 6 by crimping,

rolling, onshrinking it thereon. One side downover the inclined side 1 o is rolled therim ex tending down to theedge of the "felly, as

shown at h, and it is also bent or rolled down over the free edge of said side portion d of the rim, as indicated at i, and between this point and the oppositestraight side of the rim (indicated by a) a circumferential channel 7' is formed in the band f, a.shoulder is being formed on that part of the band f contiguous to the inner surface of,,the side 0, which shoulder serves as a sup ort -for one side of the demountable' tubu ar rim, -the band 7 from this shoulder extending up and being rolled over the outer ed 6 o the ter, as shown at m. In this manner the side a and down onto the outside 0 the lat- I band 7 (which isaneadiess, annular piece) serves to closethe open part of the rim and to brace the two borders thereof, and when this band-is put'on hot,;in' the manner de scribed, the contraction fiiereof, when -c0ol ing make'sa very rigid structure in connection with the tubular rim on which it is mounted.

As stated, Fig. 1 shows a bolted on type of tire which requires a fiat base. Therefore the tubular rim in this instance comprises thechannel-shaped body part of the rim, indicated by m provided with two, fiat,

rectangularly disposed portions 0 and p, which constitute the sides of the rim, with which the annular band 9 is interlocked, by

crimping or rolling the edges 1" and s over the edge of the two sides 0 and p. The base of the tire (which is circumferentially divided) is indicated by t and u,o indicating a portion of the tire proper. To secure this other, engage respectively the borders of the demountable rim and the border of two clamping rings 2 and 3 which fit over the base of the tire. To secure the demountable rim to the fixed rim after it has been brought to a seat on the shoulder 70 of the latter, the split locking-ring 4 is provided, which ring has an inclined face fitting the surface of the part g of the fixed rim, and by means of a number of bolts 4 which extend through this ring, and through the fixed rim, the ring may be drawn up against the inclined surface of the rim and expanded thereby into contact with the under side of the demountable rim, as at 6, Fig. 1, the locking ring preferably being formed with a lip or upstanding border 7 whereby the demountable rim may be securely held in place, To remove the demountable rim and its tire it is only necessary, as set forth in my above referred to prior patent, to remove the nuts 9 from the bolts 4 which will ermit the ring 1 to contract in diameter su ciently to permit the demountable rim to be drawn over the lip 7 of the locking ring; the lock- Referring to the structure shown in Fig.

at, 17 designates a filling or ring of wood instead of the channel-shaped ring shown in Fig. 2. It is of course understood that the rim 10 is secured to and detached from the tubular wheel rim 6 in the same manner as that shown and described in connection with Fig. 1. By the term tubular rim, it is to be understood that the parts I) and f are permanently secured together and serve as a single element to which the tire-supporting parts are locked or secured by means of the ring 4, as described.

Vhat I claim, is

A vehicle wheel, and a tubular rim fixed to the felly thereof comprising one side parallel with the plane of the Wheel, the opposite side being disposed at an acute angle .to said plane, and an annular band secured over saidinclined side, and over the outer edge of said first-named side, there being a seat thereon for a demountable rim, together with an expansible ring bearing on said in-.

clined side of the fixed rim, and means to force said ring against said side into locking engagement with the underside of a" demountable rim mounted on the fixed rim.

JOHN CLARENCE COLE. 

